You've already got a ton of great suggestions. I'll offer my two cents...

I love...

Ambrose
Cassian
Edmund
Elias
Evander
Laurence
Leander
Lucian
Marius

Middles...

Athanasius
Auxentius
Esmond
Ignatius
Rainier
Theodosius

I can't believe diacritical marks aren't allowed in America! Many names are dependent on them; it's weird and wrong that they're not allowed.

I'm in the US and I wasn't aware they weren't allowed. What does that mean exactly? I know that official documents will leave them off and no one would ever remember it, but I don't think they are banned or anything.